alexa In situ PCR for visualization of microscale distribution of specific genes and gene products in prokaryotic communities.
Environmental Sciences

Environmental Sciences

Journal of Bioremediation & Biodegradation

Author(s): Hodson RE, Dustman WA, Garg RP, Moran MA

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Abstract Obtaining information on the genetic capabilities and phylogenetic affinities of individual prokaryotic cells within natural communities is a high priority in the fields of microbial ecology, microbial biogeochemistry, and applied microbiology, among others. A method for prokaryotic in situ PCR (PI-PCR), a technique which will allow single cells within complex mixtures to be identified and characterized genetically, is presented here. The method involves amplification of specific nuclei acid sequences inside intact prokaryotic cells followed by color or fluorescence detection of the localized PCR product via bright-field or epifluorescence microscopy. Prokaryotic DNA and mRNA were both used successfully as targets for PI-PCR. We demonstrate the use of PI-PCR to identify nahA-positive cells in mixtures of bacterial isolates and in model marine bacterial communities.
This article was published in Appl Environ Microbiol and referenced in Journal of Bioremediation & Biodegradation

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